The ISAP Board of Directors governs the Society and is composed of elected Directors, Directors appointed by Patron members, Directors appointed by Association Members, and the immediate Past-Chair. The Board also consists of ex-officio members represented by the Chairs of the ISAP Technical Committees (TC). The Board appoints the Executive Committee with powers as it shall see fit, subject to regulation of the By-Laws. The Executive Committee members include four elected officials of the Board – Chair, Vice-Chair, Secretary, and Treasurer – plus the immediate Past-Chair and Executive Administrator.
Executive Committee Members
Chair
Elie Hajj
Dr. Elie Hajj is a Professor in the Civil and Environmental Engineering Department and an Associate Director of the Western Regional Superpave Center (WRSC) at University of Nevada, Reno. He has over 18 years of experience in academia and industry with an emphasis on sustainability of pavement systems, dynamic response of pavement structures, and full-scale testing of pavement systems. Dr. Hajj authored over 100 publications in journals, national and international conferences, and technical reports. He made more than 100 presentations in professional meetings, conferences, seminars, and workshops. He served as a principal investigator on multiple projects for FHWA, FAA, State DOTs, local governments, and private industry.
Dr. Hajj is a member of the Association of Asphalt Paving Technologists (AAPT), American Society for Civil Engineers (ASCE), International Society for Asphalt Pavements (ISAP), and Transportation Research Board (TRB) Committees. He is a founding member and an elected officer for the Academy of Pavement Science & Engineering (APSE). Dr. Hajj is also an associate editor for the International Journal of Pavement Engineering (IJPE).
Vice Chair
OPEN
Past Chair
Alan Carter
École de technologie supérieure
Canada
Dr. Carter is a full professor in the construction engineering department at Ecole de technologie supérieure (ETS) in Montreal, Canada. He earned is PhD in civil engineering from Auburn University (USA) in 2005 and his MS and BE from ETS in 2002 and 2000 respectively. Professor Carter works mostly on pavement recycling, cold and hot, on the use of alternative binders in pavement materials and on pavement reinforcement. He is the deputy chair of RILEM TC 280-CBE “Multiphase characterization of cold bitumen emulsion materials”, the chair of TG1 on cold recycling of RILEM TC-PAR “Performance-based Asphalt Recycling”, and an active member of other scientific committees. Prof. Carter is a past president of the Canadian Technical Asphalt association (CTAA), an associate editor for the Canadian Journal of Civil Engineering and a member of the editorial board of the Road Materials and Pavement Design journal.
Directors At-Large
Prof. dr. ir. Sandra Erkens
Professor Sandra Erkens holds the Chair of Pavement Engineering Practice at Delft University of Technology in the Netherlands since 2013. Besides this position, she is the Principal Specialist Pavement Materials and Structures at Rijkswaterstaat, the Dutch highway authority.
After obtaining her PhD on the determination, modelling and prediction of Asphalt Concrete Response (ACRe), Sandra developed into an internationally acknowledged expert in pavement materials and structures in general and asphalt concrete in particular. She has coordinated the cooperation of research organizations, among others as a member of the FEHRL (Forum for European Highway Research Laboratories) executive committee and as Program Team member for InfraQuest, the cooperation between Rijkswaterstaat, TU Delft and TNO building in the Netherlands.
Prof Erkens is a member of national and international groups involved in developing technical requirements for pavement materials and in several (inter)national organizations for the dissemination of research. These include the ISAP technical committee on Constitutive Modelling of Asphalt Concrete, the organization committee of the two yearly Dutch conference on Infrastructure (CROW-infradagen) and the organizing committee of the 4th International Chinese European Worskshop on Functional Pavement Design. She has been involved in road engineering research since 1997, has published nearly two hundred papers and articles on her work and is a regular reviewer for conferences and journals on the topic.
Kazuyuki Kubo
Kazuyuki Kubo is a Vise-President of Public Works Research Institute (PWRI), which is the largest public research institute for civil engineering in Japan. He has been a pavement engineer in PWRI for more than quarter century, and has been in charge of pavement technologies in Japan. He was a main staff for ISAP NAGOYA 2010, and also promoted joint event between ISAP and REAAA (Road Engineers’ Association in Asia and Australasia) in 2013 at Kuala Lumpur, Malaysia. He was also in charge of ISAP APE (Asphalt Pavement & Environment Symposium 2017 in Tokyo as a main member. He has been a member of Pavement Committee in Japan since 1990, and has been in charge of almost all technical standards in Japan. His research field covers almost whole pavement matters, and especially, porous asphalt pavement technology and asphalt concrete recycling are his highlights. Now asphalt concrete recycling ratio has become almost 100% in Japan, and about 80% of expressways are paved by porous asphalt concrete.
Navneet Garg
Dr. Navneet Garg is a Program Manager in Airport Technology R&D Branch at the FAA’s William J. Hughes Technical Center in Atlantic City, N.J. He earned his Ph.D. from the University of Illinois at Urbana-Champaign in 1997, M.S. from Illinois Institute of Technology at Chicago in 1993, and B.E from Karnataka Regional Engineering College (now National Institute of Technology) at Suratkal (India) in 1990, all in Civil Engineering. Dr. Garg has been involved in airport pavement research at FAA’s National Airport Pavement Test Facility since 1998, and manages projects on Accelerated Pavement Testing, Resilience, and new material technologies. He conceptualized/developed FAA’s National Airport Pavement & Materials Research Center (NAPMRC) – a $9 million state-of-the-art research facility for asphalt materials. Currently he is managing projects on full-scale testing of new materials, development of advanced pavement analysis software PANDA-AP, and web-based Life Cycle Assessment tool “FAALCAn”. He has authored over 120 papers for peer-reviewed journals and conference proceedings. Dr. Garg is a Fellow of American Society of Civil Engineers (ASCE), Co-Chair of ISAP Technical Committee on Pavement Field Evaluation, on ASCE T&DI Board of Governors, Secretary of TRB Aircraft-Airport Compatibility Committee (AV070), Associate Editor of International Journal of Pavement Engineering (IJPE), on Program Coordination Group of Airport Asphalt Pavement Technology Program (AAPTP) administered by NAPA, and past Chair of ASCE Airfield Pavements Committee. He is the recipient of 2023 UIUC Civil and Environmental Engineering Distinguished Alumnus Award, FAA’s 23rd Annual Ellis A. Ohnstad Award for Technical Excellence (2022), 2018 ASCE T&DI Airfield Practitioner Award, and 2004 Engineer of the Year award given by the Southern New Jersey Professional Societies.
James Grenfell
Australian Road Research Board
Australia
Dr Grenfell is a Principal Pavement Engineer and has been working at NTRO for 8 years. More specifically, he is a Materials Engineer with substantial pavement engineering, pavement materials, recycled materials and sustainability experience.
Having initially worked within the Pavement Structures team, he has worked within the Sustainability and Materials Performance team since 2020, bringing with him his pavement engineering and materials expertise. During his time at NTRO, he has worked on many projects looking at asphalt, foamed bitumen stabilisation, cement stabilisation and granular materials. He has worked on a variety of projects to advise government on the best practice use of recycled materials in transport infrastructure. He has also worked on performance-based specification development such as for recycled crushed glass sand for pavement applications.
Prior to this, Dr Grenfell spent 13 years as a researcher at NTEC (Nottingham Transportation Engineering Centre) at the University of Nottingham in the UK. During this time, he worked on, and managed various projects related to pavement materials. These projects involved permanent deformation and fatigue properties of asphaltic materials, moisture damage in asphalt pavements, adhesion of bitumen to aggregate, warm mix asphalt technologies, the use of crumb rubber and recycled asphalt and alternative binders. His main research interests are the fundamentals of adhesion, moisture damage of asphaltic materials, recycling, and the use of secondary materials.
Dr Grenfell has published more than 100 journal papers and peer reviewed conference papers. He is a Director-at-large of the International Society of Asphalt Pavements, on the Editorial board for the Proceedings of the Association of Asphalt Paving Technologists and a member of the TRB Asphalt Pavement Design and Rehabilitation (AKP30) committee. He is involved in several RILEM Technical Committees looking at bituminous and asphaltic materials. He is member of the Standards Australia Committee CE-012 Aggregates and Rock for Engineering Purposes. Most recently he has been appointed Technical Committee Chair of the Road Engineering Association of Asia and Australasia (REAAA) and as a committee member of PIARC TC 3.5 Road Infrastructure for Road Transport Decarbonisation. Dr Grenfell won the Category 2: Industry Excellence in Consulting, Research or Education award for the National Design Procedures for Lightly Bound Cemented Materials in Flexible Pavements at the 9th AustStab Awards of Excellence in 2021.
Prior to working at NTEC, James undertook a PhD in Metallurgy and Materials. The title of his PhD was ‘The Effect of Macroalloying on the Microstructure and Mechanical Properties of γ-based Titanium Aluminides’. This piece of work focused on the relationships between microstructure and mechanical properties, the application being the replacement of heavier steel parts in aero-engines.
Christiane Raab
EMPA
Switzerland
Christiane Raab graduated as civil engineer from Technical University of Darmstadt, Germany. In 2011, she received her PhD from Carleton University, Ottawa, Canada.
For many years, she was group leader of the Road Construction Materials and Pavements Division in the “Road Construction / Sealing” Laboratory of the Swiss Federal Laboratories for Materials Testing and Research (Empa). After the merger with the Concrete Division in 2020, she now works as senior scientist in the “Concrete and Asphalt” Laboratory. Christiane is also an associate research professor at Carleton University in Ottawa, Canada, and a lecturer at the Bern University of Applied Sciences in Switzerland. From 2011 to 2015 she further acted as Consultant for the Swiss Road Administration ASTRA in Bern, Switzerland.
She is member and chairperson of different national and international committees such as the Swiss Association of Road and Transportation Experts VSS, ISAP, RILEM and EATA. She also acts as associate editor and board member of research journals and is the author of many publications for conferences and peer reviewed journals.
Kamilla Vasconcelos
Kamilla Vasconcelos, originally from Fortaleza, Brazil, holds a B.Sc. in Civil Engineering (2002) from the Federal University of Ceará (UFC), Brazil. As part of her undergraduate studies, she participated in an academic exchange program at the Technische Universität Karlsruhe (now Karlsruhe Institute of Technology, KIT), Germany, during the Spring and Fall semesters of 2000. She earned her M.Sc. in Transportation Engineering from UFC in 2004, followed by a Ph.D. in Civil Engineering from Texas A&M University (TAMU), USA, in 2009. In 2010, she completed a postdoctoral research fellowship at the Polytechnic School of the University of São Paulo (USP), Brazil.
Dr. Vasconcelos is currently an Associate Professor in the Department of Transportation Engineering at the Polytechnic School of USP. Her research portfolio comprises over 100 technical publications in peer-reviewed journals and international conference proceedings. She serves as a peer reviewer for several high-impact scientific journals and is a member of the editorial boards of International Journal of Pavement Engineering (IJPE), Road Materials and Pavement Design (RMPD), and Transportes.
She holds leadership and advisory roles in prominent international organizations, including serving as Director-at-Large of the International Society for Asphalt Pavements (ISAP), member of the Transportation Research Board (TRB) Standing Committee AKM20 (Binders for Flexible Pavement) and AKM40 (Asphalt Mixture Evaluation and Performance), and member of the Standing International Advisory Committee for the Advanced Characterization, Modeling, and Measurement of Materials and Pavements (AM3P) Symposium. She is also actively engaged in two RILEM Technical Committees, serving as Technical Group Leader for both TC 308-PAR (Performance-Based Asphalt Recycling) and TC APS (Alternative Paving Materials for Sustainable Development).
Dr. Vasconcelos’s research focuses on the characterization, performance, and sustainable development of transportation infrastructure materials, with particular emphasis on the application of biomaterials and environmentally friendly technologies for pavement engineering.”
Gordon Airey
Gordon Airey is Director of the Nottingham Transportation Engineering Centre (NTEC) and Professor of Pavement Engineering Materials at the University of Nottingham. He also currently serves as President of the European Asphalt Technology Association (EATA), and as a Director of the Forum of European National Highway Research Laboratories (FEHRL). Gordon has been involved in pavement engineering research for over 30 years and has authored and co-authored over 350 journal and conference publications as well as contributing chapters to various pavement engineering and construction materials textbooks. His research interests include rheological assessment of bitumen, bitumen-filler mastic and asphalt mixtures; the durability of asphalt materials; the use of secondary materials (including crumb rubber, bio-binders, and waste plastic modifiers as well as recycled asphalt pavement (RAP)) in pavement applications; and the multiscale modelling and testing of bitumen-mineral aggregate systems. He has also been involved in research investigating the use of sulphur in asphalt, the use of thermodynamic approaches to moisture damage characterisation and the development of aggregate and bitumen adhesion testing methodologies. He has been principal investigator on several UK Engineering and Physical Sciences Research Council (EPSRC) sponsored projects as well as EU Marie Skłodowska-Curie Actions (MSCA) training networks. Gordon is an active member on numerous technical committees of both ISAP and the International Union of Laboratories and Experts in Construction Materials, Systems and Structures (RILEM).
Pavel Kriz
Pavel graduated from University in Calgary with PhD degree in Bituminous Materials and joined Imperial Oil (An ExxonMobil affiliate) Research Department in Sarnia, Canada in 2009.
In 2013 Pavel took over the leadership of the asphalt laboratory team with the responsibilities ranging from conducting R&D to safe laboratory operation and people development. In 2017 Pavel become a technical leader for Americas ExxonMobil asphalt business. He managed a team responsible for a comprehensive technical support to asphalt business including crude oil assessment, refining and customer support and industry advocacy. In 2021 Pavel relocated to Prague and assumed a role of Asphalt Principal Engineer at ExxonMobil, providing senior expertise and mentorship to the global asphalt team.
Pavel has been very active in a number of industry associations. He is currently Vice President and member of the Board of Directors at Eurobitume. He has held a number of roles at the Asphalt Institute, most recently (2019 – 2022) he chaired the Technical Advisory Committee. He is an international representative at the AKM10 committee within Transportation Research Board. Over the years he authored over 30 technical papers and several patents.
Pavel is excited about joining ISAP BoD and he offers his passion for asphalt technology and industry to the Society.
Maria Carmen Rubio Gámez
University of Granada
Spain
Emmanuel Chailleux
Emmanuel Chailleux obtained a PhD in 2000 from the “Ecole Centrale de Lyon (France)” in polymer science field. Since 2004 he has been in permanent position at University Gustave Eiffel as researcher in the pavement department. His current investigations deal with road binder performances, including rheological properties, viscoelastic modelling, ageing and cracking phenomena. He also conducts researches to develop and characterize alternative binder from biomass. He is the deputy chair of the RILEM technical committee APS : Alternative Paving Materials – Sustainability. Furthermore, he is managing the French project “Post Oil Pavement”.
Association Members
Richard Willis
NAPA
Phil Hendricks
Sabita (Southern African Bitumen Association)
South Africa
Hiroyuki Masuda
Japan Road Contractors Association (JRCA)
Japan
Technical Committee Leadership (ex-Officio)
Tom Scarpas, Chair (Amit Bhasin)
TC on Constitutive Modelling of Asphaltic Materials
Gabriele Tebaldi, Chair (Elie Hajj, Vice Chair)
TC on Asphalt Pavement and Environment
Dave Eshan, Chair (Navneet Garg, Vice Chair)
TC on Pavement Field Evaluation
Executive Administrator
R. Michael (Mike) Anderson
International Society for Asphalt Pavements
R. Michael (Mike) Anderson was chosen to succeed Gene Skok as the Executive Administrator of ISAP in January 2014. Mike started his career in 1987 with the Kentucky Department of Highways as asphalt mix design engineer, following that assignment by working for HG Mays Corporation – an asphalt mix production/construction company. Since 1991 he has worked for the Asphalt Institute – currently serving as the Director of Research and Laboratory Services.
In addition to ISAP, Mike is involved in several professional organizations with an interest in asphalt technology. He is a member of the Association of Asphalt Paving Technologists (AAPT) – serving as the Association’s President in 2009 and as Executive Director since July 2013. He is a member of the Association of Modified Asphalt Producers (AMAP), Asphalt Emulsion Manufacturers Association (AEMA), Canadian Technical Asphalt Association (CTAA), and ASTM International. Mike participates in several Transportation Research Board (TRB) Standing Committee as a “Friend”, and serves as co-Chair of the Asphalt Binder Expert Task Group (ETG) and liaison to the Asphalt Mixture ETG.
He is registered as a professional engineer in Kentucky.
Executive Administrator – Emeritus
Eugene Skok
Eugene Skok received a Bachelors, Masters and PhD in Civil Engineering at the University of Minnesota in 1957, 1959 and 1969, respectively. He has worked and taught in the areas of Pavement Design, Evaluation and Engineering Materials and as a researcher. He worked at the AASHO Road Test during the construction and analysis periods in 1958-1960. He then worked for the Asphalt Institute in College Park, Maryland.
From 1963 through 1971, while at the University of Minnesota he worked on various research projects including the research used for the current Minnesota Highway Department pavement design procedure. He also did research for U.S. Forest Service, NCHRP and the Minnesota Local Road Research Board in pavement design, analysis and quality control.
In 1972 he started teaching at St. Paul Technical College where he was Head of the Civil Technology Department. He also helped start a pavement consulting firm (Midwest Pavement Management) in 1980 which was bought out by Braun Intertec in 1987.
In 1988 he became the Principle Investigator for the North Central Regional Coordination Office of the Strategic Highway Research Program (SHRP). The North Central Region covers 13 states and 2 provinces. The Office was responsible for the setting up, evaluation and analysis of over 300 test sections in the region.
Since 1998 he has been a Research Associate and Adjunct Professor in the Civil Engineering Department back at the University of Minnesota. He has taught pavement and materials courses and worked on research projects including the work described in this presentation.
Dr. Skok is a Life Member of ASCE (President of the MN Section 1978-79), Association of Asphalt Paving Technologists (Secretary-Treasurer since 1969), International Society for Asphalt Pavements (Executive Administrator since 1996) MnAAPT, ASTM, TRB, MSES, Chi Epsilon. Tau Beta Pi and Plumb Bob. He was elected to the Asphalt Institute Roll of Honor in 1995.
